Motoyasu Kitamura is the Spear Hero, one of the Four Holy Heroes summoned in Melromarc. Additionally, he is the main protagonist of the spin-off series, The Reprise of the Spear Hero.

Motoyasu is likely the friendliest of the four Legendary Heroes. It's mentioned that he is loyal to his allies. However, he is incredibly naive and gullible. He is generally a nice person; however, he's easily fooled by women. He will believe anything a woman says without any shred of evidence. When Malty framed Naofumi for rape, even though she had stolen his money and clothes both of which she gave to Motoyasu, he thoroughly believed her claims and became openly hostile towards Naofumi in her defense.