The boy who has been dating Kashiwagi, thanks to Shirogane's help, comes back yet again for more relationship advice from Shirogane. But something seems different about him. With his return from summer vacation, he has completely transformed into a player. Getting advice was just an excuse to brag about his girlfriend to Shirogane and Ishigami, and the two suspect that he has "experienced nirvana." They decide to leave the couple alone and observe them from afar as the two lovebirds start to get into a romantic mood...
And he has Kaguya's birthday
clearly marked in his date book.
.وعيد ميلاد شينوميا مُعلّم بوضوح في كتاب مواعيده
Et il a noté l’anniversaire de Kaguya
sur son calendrier.
Tem anotado o aniversário
dela em sua agenda.
Он заранее отметил 
день рождения Кагуи в ежедневнике.