Yoshifumi Aoki

Yoshifumi is Yui's classmate. He holds affection for her, and continues his attempts to approach her, but she never gives him a chance. In the Cultural Research Club he's often called out, and his pathetic side stands out more, but he also relaxes them with some of his casual statements.

[Spoiler] When he was young, Aoki was in love with Nana, who moved away. She is said to have looked exactly like Yui. [/Spoiler]

(Source: ANN)