After watching Kenichi defeat Daimonji, Tsukuba, the strongest member of the karate club, gets suspicious of Kenichi's abilities. At the school Miu, joins the girl's gymnastics club and soon becomes the center of attention after displaying her abilities at gymnastics. Kenichi desperately tries to avoid Tsukuba, but is soon caught and gets beaten to a pulp. Seeing Kenichi repent his loss to Tsukuba, Akisame decides to start training him in some martial arts techniques.

Kenichi and Miu's homeroom teacher pays a visit on Ryōzanpaku to check on her living conditions, and the members of the dojo decide to forge a story to deceive them.

Hoping to win Kenichi's affection, Izumi seeks for Nijima's aid and ends up paying a visit to Ryouzanpaku.

Ragnarok's Loki and Siegfried capture Niijima and Kenichi goes for his rescue along Miu.

Renka discovers where Kensei Ma is living and appears in Ryouzanpaku, determined not only to bring her father back home, but to win Kenichi's heart too, much to Miu's jealousy.

While training in the mountains, Kenichi gets lost but is rescued by a mysterious man named Ogata Ishinsai, and receives from him a tempting proposal that could change his destiny.

Unable to evade Ryuto's punches at all, Kenichi starts to counter attack by constantly changing his fighting style, imitating his masters' personalities (to their combined horror and amusement).