5.) Kisa Shota+Chiaki Yoshino- Cousins

Backstory: Kisa-san's mom was the sister Chiaki's mom. Both mother were very close, like glue actually. They separate and got married to other men. The last names used to be Yuka Terri and Yuka Mana. Mana married Chiaki Cuga though into the 3 years of age of their 1st child he died in a car accident. All she has in her son Yoshino, while Terri married Kisa Mino. They had a beautiful marriage for 15 years, until they a divorce. Now its its just Shota and his mom. Kisa-san always got into trouble because he is frustrated with his parents divorce.

Thou his cousin, Chiaki as good hearted as anyone he could know,was the one who picked Kisa up on the right track. From then on, they stuck together thick and thin. No matter what, they will be stuck together just like their moms.

Yokozowa Takafumi+Yokozowa Riuuchiro- Blood Brothers

Backstory: Nothing really interesting happens to the Yokozowa family. Riuuchiro(Isaka) and Takafumi didn't really interact with each other.

Yokozowa did have a crush on Masamune and they tried to have a relationship, even Yokozowa was desperate enough to ask for them to have sex. Although it turned out that Masamune didn't feel thr same way after what everything just happened. Yokozowa was dwvestated on the inside but keep his sadness hidden and they still were close as freinds.( Same woth Hiroki, they both had blindfold sex woth each other because Usami was in love with Takahiro. Though, we all know Takahiro is too oblivious to realize to notice his feelings.) (Isaka) Riuuchiro went in to comfort him until he got off his depression. This was a way for them to become closer as brothers and there family was pleased with there newly formed bond.

Hatori - Only Child

Never really liked to interact with people, but teied hos best to not be anti-social like his parents said. Saying "A kid his age needs freinds". Hatori had neverhad his first kiss and is still a virgin throughout Highschool. Though when he meet Takano and Usami, he felt alot more comfortable until he graduated highschool.(A/N: I know its short, but I ran out of ideas abouy the backstories for the last ones)

Yuu - Only Child

He has beem Chiaki's freind since begining of 8h grade. Both had the love for "Za Kan(Da Man)" which is when Misaki amr into the picture. Tjey started their own fanclub for "Da Man". They called themselves " Da Man Fans". Yuu had a little crush on Chiaki thinking it would blow off. Until he realized he started to love everything about him and couldn't stop loving him. Though with Chiaki's naivety, he kept his unrequited love to himself.