So Fluffy haired guy > Twin sister Twin sister > Taiki Taiki = Yukito
I think Taiki is using twin sister as an excuse to get jiggy with Yukito. Fluffy hair can tell Taiki likes yukito so to kill 2 birds with one stone, he tries to make Taiki jealous. By doing that, Taiki is too distracted with being possessive that he'll spend less time with twin sister. Then fluffy hair can snatch miss perfect while the other 2 communicate with each other. It's a win-win?
So
Fluffy haired guy > Twin sister
Twin sister > Taiki
Taiki = Yukito
I think Taiki is using twin sister as an excuse to get jiggy with Yukito. Fluffy hair can tell Taiki likes yukito so to kill 2 birds with one stone, he tries to make Taiki jealous. By doing that, Taiki is too distracted with being possessive that he'll spend less time with twin sister. Then fluffy hair can snatch miss perfect while the other 2 communicate with each other. It's a win-win?