Alya Sometimes Hides Her Feelings in Russian, Vol. 5 — Sunsunsun

As their memorable summer vacation winds down, Masachika and his classmates jump straight into their second semester at Seirei Private Academy. The school festival is coming up fast, and Masachika knows how much the event influences the student council election. He encourages Alya to get involved and win over some voters, but when she starts making new friends in earnest, Masachika can't help but feel a bit conflicted. While he wrestles with his feelings, things only get more confusing when he makes a shocking discovery. Masachika may have finally figured out the true identity of the mysterious childhood friend from his memories, and now he really has no idea what he should do!