Uq Holder! 27 (manga)

After detecting unusual activity on Pluto, the UQ Holder numbers rush to the scene, only to fall straight into a trap. An immortality-negating attack wipes out the UQ team and permanent death seems inevitable. But not all hope is lost. Gengoro’s strange video game-like immortal powers may provide UQ a second chance as well as a guide on how to beat Ialda’s minions on hard mode.