Fuutarou is too busy studying,so the birthday plan is not progressing so well.
All quint studying in library,except Nino and Itsuki.Fuutarou tried to inqure something with Miku but as expected Ichika interfere with it.
Ichika feel guilty about her action,so to ease it she went to buy birthday present.While doing so she met Nino,who also had the same idea and bought her present already.Something something they won't give up in winning the dick.
Back in library,Yotsuba want to give him 1000 folded crane,but worried that it will be delayed.Yotsuba cried because she think she will botched the agreement they all made and ruined the birthday plan.Seeing Yotsuba crying,they think that they shouldn't go with the plan after all(even though Miku already prepared her gift of two sports gym tickets.)Yotsuba say that is a no-no,so she proposed creating a new birthday plan.
After all of them left,Itsuki come in and give Fuutarou energy drink.She told him about her works with Shimoda-san.
Somehow or another Fuutarou fell asleep in the library and when he wake up he noticed paper cranes folded using test paper.He realized he is not alone in this and continue to study.