Mashin Hero Wataru: The Seven Spirits of Ryujinmaru S01 E04 Red Flash! Double x Slash!

Kennosuke loses his parents and runs the dojo alone. Shibarak was practicing as he grew up, but Kennosuke, who is bearish and crying, always runs away. Meanwhile, Hikashibou-Benke comes aiming for the treasure of the dojo, "Sword of the Red Dragon".