Q太郎

脱离群体的海豚，经常和千纱在一起。 千纱一下海就会靠近过来，十分亲近人，但喜欢恶作剧，也会做各种戏弄人的事。 还经常出其不意地往人身上泼水。

摘自本作简介中该角色的段落

Forced out of its pod, this dolphin is often found swimming with Chisa. Having developed an attachment to Chisa, he usually swims right over as she gets into the water, but he also has a prankster-like side and tends to mess with her a lot, too. He has a habit of suddenly deluging people close by with water.

简介来自 VNDB