Here is a chapter that summarizes all the information on the arcs of my story as well as the list of immigrants. (Each time I publish a new chapter, I will delete this summary, introduce new information, and then repost it, following the new chapter.)
Prologue : Chapter 2 - 3
Shells town arc : Chapter 4 - 7
Orange town arc : Chapter 8 - 12
Kuro arc : Chapter 13 - 20
Baratie arc : Chapter 21 - 28
Arlong Park arc : Chapter 29 - 37
Logue Town arc : Chapter 38 - 41
Laboon arc : Chapter 42 - 44
Whiskey Peak arc : Chapter 45 - 48
Little Garden arc : Chapter 49 - 55
Drum Island arc : Chapter 56 - 65
Alabasta arc : Chapter 66 - 102
Raimbow mist arc : Chapter 103 - 115
Dead End arc : Chapter 116 - 123
Jaya arc : Chapter 124 - 133
Skypiea arc ( Partie 1 ) : Chapter 134 - 160
Ace and Isuka arc : Chapter 161 - 168
Skypiea arc ( Partie 2 ) : Chapter 169 - 212
Hyou arc : Chapter 213 - 220
Davy back fight : Chapter 221 - 240
Water-7 arc : Chapter 241- ?
Lists of immigrants and OC characters :
1 ) Raynare ( High school DxD ) :
- First appareance : Chapter 2
- Affiliation : Luffy's crew
2 ) Lucy Heartfilia ( Fairy tail ) :
- First appareance : Chapter 2
- Affiliation : Luffy's crew
3 ) Gredoy brothers ( OC )
- First appareance : Chapter 5
- Affiiliation : Morgan ( formely )
4 ) Magi ( OC )
- First appareance : Chapter 8
- Affiliation : Buggy's crew
5 ) Bull ( OC )
- First appareance : Chapter 10
- Affiliation : Buggy's crew
6 ) Phelix ( OC )
- First appareance : Chapter 16
- Affiliation : Kuro's crew ( formely )
7 ) Alice / Carmyna ( OC )
- First appareance : Chapter 22
- Affiliation : Baratie ( formely ) / Mihawk
8 ) Syra ( OC )
- First appareance : Chapter 29
- Affiliation : Arlong's crew ( formely )
9 ) Bruno Bucciarati ( Jojo's bizarre adventure )
- First appareance : Chapter 42
- Affiliation : Luffy's crew
10 ) Shinichi Kudo ( Detective Conan )
- First appareance : Chapter 42
- Affiliation : Navy ( Sengoku )
11 ) Menma ( Ano Hana )
- First appareance : Chapter 42
- Affiliation : Luffy's crew
12 ) Megumin ( Konusuba )
- First appareance : Chapter 42
- Affiliation : Buggy's crew
13 ) Widos ( OC )
- First appareance : Chapter 42
- Affiliation : Nobody
14 ) Sakura ( Zombieland saga )
- First appareance : Chapter 48
- Affiliation : Navy ( Coby )
15 ) Igneel ( Fairy tail )
- First appareance : Chapter 54
- Affiliation : Roger's crew ( formely )
16 ) Eevee ( Pokemon )
- First appareance : Chapter 66
- Affiliation : Luffy's crew ( formely )
17 ) Reiner ( SNK )
- First appareance : Chapter 66
- Affiliation : Navy ( Smoker ) ( ally )
18 ) Noscula ( OC )
-First appareance : Chapter 66
- Affiliation : Navy ( formely ) / Baroque Works ( formely )
19 ) Igicko ( OC )
- First appareance : Chapter 74
- Affiliation : Kamyu
20 ) Ara ( OC )
- First appareance : Chapter 74
- Affiliation : Kamyu
21 ) Mr 6 / Pik ( OC )
- First appareance : Chapter 75
- Affiliation : Baroque Works ( formely )
22 ) Miss Halloween / Ninguja ( OC )
- First appareance : Chapter 75
- Affiliation : Baroque Works ( formely )
23 ) Mr 10 ( OC )
- First appareance : Chapter 84
- Affiliation : Baroque Works ( formely )
24 ) Miss Weekend ( OC )
- First appareance : Chapter 84
- Affiliation : Baroque Works ( formely )
25 ) Light Yagami ( Death Note )
- First appareance : Chapter 92
- Affiliation : CP0
26 ) Ryuk ( Death note )
- First appareance : Chapter 92
- Affiliation : CP0 ( Ally )
27 ) Pit ( Kid Icarus )
- First appareance : Chapter 97
- Affiliation : Gan Fall ( Formely ) / People of Skypiea
28 ) Babidi ( DBZ )
- First appareance : Chapter 97
- Affiliation : Nobody
29 ) Orochimaru ( Naruto )
- First appareance : Chapter 97
- Affiliation : Nobody
30 ) Garou ( One punch man )
- First appareance : Chapter 97
- Affiliation : Nobody
31 ) Samus ( Metroid )
- First appareance : Chapter 98
- Affiliation : Nobody
32 ) Utsuro ( Gintama )
- First appareance : Chapter 101
- Affiliation : Shanks's crew
33 ) Nana Shimura ( MHA )
- First appareance : Chapter 101
-Affiliation : Shanks's crew
34 ) Mirko ( MHA )
- First appareance : Chapter 102
- Affiliation : Nobody
35 ) Jin ( MHA )
-First appareance : Chapter 102
- Affiliation : Navy ( Coby )
36 ) Sosuke Aizen ( Bleach )
- First appareance : Chapter 107
- Affiliation : Xerec's crew ( formely )
37 ) Akoya Seishu ( Kengan Ashura )
- First appareance : Chapter 108
- Affiliation : CP9 ( ally )
38 ) Hiyama Shunka ( Kengan Ashura )
- First appareance : Chapter 108
- Affiliation : CP9 ( ally )
39 ) Emma ( The Promised Neverland )
- First appareance : Chapter 108
- Affiliation : Navy
40 ) Nicky ( OC )
- First appareance : Chapter 108
- Affiliation : Navy ( Emma )
41 ) Team Rocket ( pokemon )
- First appareance : Chapter 111
- Affiliation : Gasparde's crew ( formely )
42 ) Velvet ( Tales of Berseria )
- First appareance : Chapter 124
- Affiliation : Luffy's crew
43 ) Acacia ( Toriko )
- First appereance : Chapter 125
- Affiliation : Roger's crew ( formely )
44 ) Hunter J ( Pokemon )
- First appereance : Chapter 127
- Affiliation : Enel's group ( formely )
45 ) Zancrow ( Fairy tail )
- First appereance : Chapter 127
- Affiliation : Enel's group ( formely )
46 ) Shizuo Heiwajima ( Durarara )
- First appereance : Chapter 134
- Affiliation : Nobody
47 ) Pokemons ( X 49 )
- First appereance : Chapter 141
- Affiliation : Enel's group ( formely )
48 ) Hattrem / Hatterene ( Pokemon )
- First appereance : Chapter 146
- Affiliation : Enel's group ( formely ) / Luffy's crew
49 ) Mistreavus ( pokemon )
- First appareance : Chapter 146
- Affiliation : Enel's group ( formely )
50 ) Lelouch Di Britannia ( Code Guess )
- First appareance : Chapter 151
- Affiliation : Nobody
51 ) Black Knights ( Code Guess )
- First appareance : Chapter 151
- Affiliation : Nobody
52 ) Suzaku Kururugi ( Code Guess )
- First appareance : Chapter 151
- Affiliation : Nobody
53 ) Elsa Granhiert ( Re:Zero )
- First appareance : Chapter 152
- Affiliation : Moria's crew ( ally )
54 ) Camado ( OC )
- First appareance : Chapter 152
- Affiliation : Moria's crew
55 ) Ayoko ( OC )
- First appareance : Chapter 156
- Affiliation : Shandian's tribe
56 ) Heracross ( Pokemon )
- First appareance : Chapter 157
- Affiliation : Enel's group ( formely ) / Luffy's crew
57 ) Kesoko ( OC )
- First appareance : Chapter 159 ( Flashback )
- Affiliation : Nobody
58 ) Ladydevimon ( Digimon )
-First appareance : Chapter 160
- Affiliation : Enel's group ( formely )
59 ) Mosquito girl ( One Punch Man )
- First appareance : Chapter 160
- Affiliation : Nobody
60 ) Berkam ( OC )
- First appareance : Chapter 161
- Affiliation : Navy ( formely )
61 ) Nakata ( OC )
- First appareance : Chapter 162
- Affiliation : Navy ( Coby )
62 ) Apu ( OC )
-First appareance : Chapter 162
- Affiliation : Navy ( Formely )
63 ) Doctor Frank ( OC )
- First appareance : Chapter 162
- Affiliation : Kaido's crew
64 ) Zarax ( OC )
- First appareance : Chapter 171
- Affiliation : Roger's crew ( formely )
65 ) Camula ( Yugioh GX )
- First appareance : Chapter 172
- Affiliation : Widos ( ally )
66 ) Mina Carolina ( SNK )
- First appareance : Chapter 175
- Affiliation : Widos
67 ) Marco ( SNK )
- First appareance : Chapter 175
- Affiliation : Widos
68 ) Suzuka ( Akame Ga Kill )
- First appareance : Chapter 182
- Affiliation : Widos
69 ) Bouffalant ( pokemon )
- First appareance : Chapter 191
- Affiliation : Luffy's crew
70 ) Vitar ( OC )
- First appareance : Chapter 207
- Affiliation : Navy
71 ) Orcas :
- First appareance : Chapter 207
- Affiliation : Navy
72 ) Maya ( OC )
- First appareance : Chapter 207
- Affimiation : Zarax
73 ) Razo Remana ( OC )
- First appareance : Chapter 208
- Affiliation : Nobody
74 ) Ottis Toole ( Real world )
- First appareance : Chapter 209
- Affiliation : Nobody
75 ) Henry Lee Lucas ( Real World )
- First appareance : Chapter 209
- Affiliation : Nobody
76 ) Hyou ( OC )
- First appareance : Chapter 213
- Affiliation : Nobody
77 ) Kamy ( OC )
- First appareance : Chapter 213
- Affiliation : Hyou ( formely )
78 ) Nodeath ( OC )
- First appareance : Chapter 213
- Affiliation : Hyou ( formely )
79 ) Cordio ( OC )
- First appareance : Chapter 213
- Affiliation : Nobody
80 ) Moyo ( OC )
- First appareance : Chapter 214
- Affiliation : Nobody
81 ) Snake ( OC )
- First appareance : Chapter 214
- Affiliation : Ace ( Ally )
82 ) Yank ( OC )
- First appareance : Chapter 214
- Affiliation : Okimo
83 ) Karly ( OC )
- First appareance : Chapter 214
- Affiliation : Navy
84 ) Ai Hoshino ( Oshi no Ko )
- First apparence : Chapter 223
-Affiliation : Nobody
85 ) Momana ( OC )
- First appareance : Chapter 223
- Affiliation : Moria's crew
86 ) Skroa ( OC )
- First appareance : Chapter 223
- Affiliation : Moria's crew
87 ) Sejus ( OC )
- First apparence : Chapter 224
- Affiliation : Xerec's crew ( formely )
88 ) Dumdo ( OC )
- First apparence : Chapter 229
- Affiliation : Foxy's crew
89 ) Susumo ( OC )
- First apparence : Chapter 230
- Affiliation : Foxy's crew
90 ) Omiko ( OC )
- First appareance : Chapter 233
- Affiliation : Vegapunk ( formely )
91 ) Ado ( OC )
-First appareance : Chapter 233
- Affiliation : Uta
92 ) Azelma ( OC )
- First appareance : Chapter 237
- Affiliation : Tenryubito' s slave ( formely )
93 ) Shun-Day ( OC )
- First appareance : Chapter 237
- Affiliation : Tenryubito' s slave ( formely )
94 ) Toxtricity ( Pokemon )
- First appareance : Chapter 238
- Affiliation : Nobody
95 ) Fosha ( OC )
-First appareance : Chapter 242
-Affiliation : Unkrown