Koala writes about daily life, whether it's good or bad, happy or sad. Koala treats every day as a precious day.

Toya Senji is talentless. He's tried everything but he can't seem to excel at anything no matter how hard he tries. Then he meets Haito, a Kendo champion and... humanity's protector? She uses the Stem of Reincarnation to draw on the abilities of her past lives, but it only works when she slits her own throat. And now she wants Toya to join her?!

Weighed down by memories she can't shake, high schooler Koyuki Hikawa keeps everyone at arm's length — until three schoolmates draw her out of her shell.

Third part of Dr. Stone: Science Future.

At Awajima Opera School, girls from across Japan strive to earn a place on stage. Wakana is driven by her love of musical theater, while Kinue studies with quiet discipline. Scholarship student Emi draws attention from all—but especially from Keiko, who struggles with admiration and comparison. Through shifting perspectives, their intertwined days explore ambition, friendship, and self-discovery.