Synopsis

An ordinary guy searching for his missing sister, Yuuki Wakura stumbles into Mato, an alternate dimension full of monsters called Shuuki that would love to eat him. He gets saved by Kyouka Uzen, a squad commander in the all-female Mato Defense Force, and here's the catch: her power literally turns him into a weaponized slave form she commands in battle. Season 2 of Chained Soldier picks up with 12 more episodes of this dynamic, and if you watched the first season, you already know the deal: intense fights, a harem that actually has personality, and an ecchi streak that doesn't apologize for itself. The power system is genuinely interesting though. It's not just fanservice window dressing; the slave transformation mechanic ties directly into the combat and the relationships between Yuuki and the squad members. Passione and Hayabusa Film keep the animation sharp, especially during the action sequences where things get properly chaotic. The tone is action-packed but knows when to breathe for character moments. If you liked High School DxD's mix of combat and ecchi but wanted something with a more structured world, or if Akame ga Kill scratched an itch with its darker action-fantasy vibes, this lands somewhere in that neighborhood. It's a shounen battle series that leans hard into its harem elements without pretending it's something it's not; and honestly, that straightforwardness is part of why it works.