It's risky to introduce new characters. Their story may become too minor later. I can see why there are Taichi haters out there. Taichi swiftly rejects Sumire's love quest. Also, he's too confident with girls. It seems he admits it is usually girls asking him out. Maybe he has dated many girls at same time.
No wonder there are Taichi haters. p.s. Their hate is rage, not jealousy...not jealousy.
