Kenichi: The Mightiest Disciple S01 E46 Farewell! A Determined Niijima Joins the Fray!

"From Wimp To Warrior. Sort of."

Ragnarok discovers Niijima's Shinpaku Alliance hideout. Loki has his underlings surrounding the building to put an end to the Shinpaku Alliance. The rival gangs go all out in this decisive battle. Kenichi receives a message from Niijima and becomes concerned about the situation back home.