カラフルキッス ～12コの胸キュン！～

Main character returns to his alma mater for teaching practice starting in the fall. According to facility rule he has to stay at student dormitory. His stay there is full of nostalgia. Oh, and there are so many events at school - sports festivals, culture festivals and school trips. He gets in touch with many juniors through these multiple occasions.

[From vndbreview]