From Lovesick Alley:
When Konomi and Tora were five, Tora moved away and got separated from Konomi. Ten years later, without any communication, Konomi decides to move on. Just as she declared it, her other childhood friend, Mikkun, asks her out! And right when she’s decided to consider Mikkun, Tora suddenly appears?! A crazy love triangle story between three childhood friends is set to take place!