I Kept Pressing the 100-Million-Year Button and Came Out on Top, Vol. 8 (light novel) — Syuichi Tsukishima

After Allen and the others rescue Shii from a political marriage with a Ronelian noble, they somehow make it through the ups and downs of the entrance exam and Valentine's day, finally completing their first year at the academy! For the upcoming spring break, they'll attend a training camp in Rose's homeland, Cherrin, the Land of Sakura! What awaits them there?!