Reborn in the Armor World

Rebirth + Armor + System + Everyday School Life + Comedy Reborn into an Armor Hero world, he suddenly gains a Blessings System. From then on, the world has one more show-off, strutting between school life and protecting the world. (This isn't purely an Armor Hero story; school life and armor action each get about equal attention.) The plot may have fewer show-off moments early on, but later he really goes all out! The protagonist is pretty overpowered, but not invincible.