The Guardian Spirit of All People: I Became the Guardian Spirit

After finally surviving the endless war in the distant future, I thought I could return to my hometown and live an ordinary life... But something unexpected happened... Protagonist: Are you my guardian? Little girl: Yes... Are you my guardian spirit? Protagonist: ... That's right! Little girl: What is this blue armor you are wearing? Protagonist: This is power armor, a gift from the Emperor! Little girl: What is that hanging on your waist? Protagonist: This is a bolter! This is a chainsword! This is a single molecule dagger! Little girl: What should I call you? Protagonist: You can call me Liang Lyon or call me Asta the monk! Little girl: I'll call you Smurf! Protagonist:………… This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.