What would you do if you could go back 4 years knowing everything you know now? When Marco Diaz wakes up in a seemingly different time, he must figure out what's going on, and whether or not he should do things differently this time. Rated M for language and violent scenes, and some spicy stuff

His whole life Marco Diaz has been raised by monsters, living under the cruel rule of their leader, Toffee. But one day Marco escapes into Mewni where he meets a magical princess and Mewman like himself, who begins teaching him all about her world. Together they will learn about life, love, and the lights within each of them, as they change their world forever.

A vision has been seen by Arceus: a world covered in darkness, corrupting both humans and Pokemon but there is hope as it also showed two heroes fighting against it. A plan is formed to prepare for war by entering an upcoming tournament to test their strength before it starts. Old & new friends meet, relationships are made & emotions run high. Rated M for violence/language/lemons.

After spending four years in the wilderness, Ash returns to compete in the latest inauguration of the Master's Tournament. However Ash's life rarely ever goes as planned, and before long he is wrapped up in another event that could potentially lead to his demise. Can he triumph once more, or will he fall before the fight even begins. Aureliashipping.

Only a week after saving the world yet again, Ash is pushed to the edge by his so called friends and Pokemon. To escape it all, he travels to the region of Alola. He wants to grow stronger and prove them all wrong while fighting his biggest battle yet against an unknown foe. Contains swearing here and there. Ash X Lillie.

Red is known to the world as Alola's regional Professor, but in reality he is Ash Ketchum. Why he assumed under a different name is unclear to the ones close to his new persona. However, a man from his past entered his new life and started bringing him back into reality. Ash x Lillie (Aureliashipping).

19 years old and ready for a vacation. This is Ash, now four years after returning home to Kanto from the pokemon school in Alola. He's eager to vacation again in Alola, but even more eager to spend time with three Alolan girls from his past. And they're just as eager to spend time with him. AshxMallow AshxLana AshxLillie

Ash and those who were still with him were betrayed by his other friends, but were rescued thanks to Yveltal and Xerneas. Zygarde warns them and the legendary pokemon of a coming threat to their world. Years later, they have returned, stronger than ever, to not only prove that they were strong, but to unite their divided world. Ash x Harem. Crossover elements. Summary sucks I know.

Abandoned, and betrayed by the world, Ash Ketchum takes the name Don Satoshi and plans to destroy a corrupt Pokemon League. The upcoming Master's Tournament is home to the League's most sinister plan yet, and Ash is the only one with the guts to stop it. But with a broken heart, can he do it? (Ash x an angry and jealous harem). Chapter 10 up.

Ash returns home after losing in Unova, only for him to be betrayed by his friends. Years later, Ash returns to the world alongside new friends in the Master League, where a team of ten competes to find out who truly the best. However, deep within the shadows there's an evil organisation plotting, will Ash and the others be able to win? COMPLETED! Previous chapters being edited!

Betrayal, that's all Ash felt at that moment. Ash was so close to achieving his dream of becoming a Pokemon Master only to have it ripped away from him. Betrayed by his friends Ash was alone in the world. 4 years later Ash is invited to the Master Cup, a tournament where all the best trainers competed. With his former friends attending, what will happen to Ash?