Senpai's Poofball / Thanks, Senpai!.
Nagatoro has a nightmare about Senpai ignoring her and spending time with Gamo and Yosshii, then becomes embarrassed when she wakes and finds Senpai covered her with a blanket. After tickling him she dares him to tickle her back, but she backs out at the last second from embarrassment. She offers to trim his long hair and he eventually agrees, but she is called away by Gamo and Yosshii who capture Senpai and threaten to shave his entire head, but Senpai manages to resist until a furious Nagatoro returns, sending Gamo and Yosshii fleeing. Touched that he was willing to resist just so she could cut his hair, she gives him a proper haircut...