Kobayashi ga Kawai Sugite Tsurai!!Koba Cute!; Kobayashi Has It Tough Being So Cute!!; So Cute it Hurts!!; โคบายาชิ น่ารักเกินห้ามใจ; 小林が可愛すぎてツライっ!!; 小林可爱到爆!

Kobayashi Mitsuru and Kobayashi Megumi are twin brother and sister, with identical faces but radically different personalities: while Mitsuru is a confident charmer who wins the hearts of dozens of girls, Megumi is an average otaku who is in love with a virtual hero. Yet, the two's lives start to turn upside down after Mitsuru and Megumi switch roles... A complicated love story starts!!!