It was Christmas Day, yet devoid of any festive cheer. Sanda was attacked by his classmate, Shiori. He interpreted the act as a declaration of affection and waited expectantly for her to confess her feelings, only to be met with something e…

Amaya discovered Sanda's true identity – Santa – and quickly subdued him, forcing Shiori to participate in a kiss. Santa resisted. He then unleashed the sled’s power, using it to break free. Just as this occurred, Headmaster Oshibu appeared…

Sanda discovered an ability to discern truth from falsehood. Eager to employ this newfound gift, Shiori sought to use it in the search for Ono, but a wave of uncertainty washed over Sanda. In that moment, Shiori offered a lie, one born of s…

The funeral was underway when Santa found himself locked in combat with Yagiuda, a struggle that stirred within him a disquieting fear of the other man's strength. Yet, a familiar determination rekindled, and with a surge of will, he shatte…

Sanda had made a solemn vow: he would never love. Yet, during a violent typhoon, his message to his intended, Niko, was lost. Drawn against his will, he finds himself captivated by her. The following day, Yagiuda appears, arriving as a new …

Santa intercepted Headmaster Oshibu's advance, preventing him from striking at the adult Ono. However, the ninety-two-year-old, empowered beyond measure, easily subdued the Headmaster. Turning to the children, Santa implored them to lend th…

To safeguard Sanda, Amaya severed their friendship. Elsewhere, Oshibu, bearing the marks of past battles and finding solace in Yagiuda’s presence, directed his gaze toward the students of Class 10, those responsible for the deaths of adults…

Shiori rescued Santa from Namatame, and he resolved to steel himself against emotion. Yet, when Niko asked for a kiss, a wave of panic seized him, and he nearly succumbed to a transformation before her.

Tetsudome observes that Santa Claus lacks a certain strength of character. With his assistance, Sanda transforms into Dark Santa, yet the change leaves him questioning his own resolve. Following a renewed encounter with Namatame, he makes a…

As twilight deepened during the Peak of Youth Ceremony, Niko seized Sanda’s first kiss. Elsewhere, Yagiuda stood alone against Namatame, deliberately drawing his attention.

The ceremony unravels with Namatame’s arrival. As she eats yakisoba, she encounters Sanda in a childlike form. Simultaneously, his physical form begins to disintegrate, mirroring the altered state of Ono.

Before the assembled students, Santa faced Oshibu in a contest of wills. The headmaster basked in the applause, yet Santa’s strength returned as he unveiled a deeper truth. The confrontation reached its climax on the rooftop.