戦士を支え、すべてを癒すヒーラーに憧れを抱く少年・マルコ。夢を叶えるため、ヒーラーを専用に育成する看護学校「サン・カステッロ」に入学を果たす。 しかしいざ入学してみるとそこは、女性9割、男子1割の女尊男卑な世界だった!? しかも、楽しい学園生活になるかと思いきや命がけの授業が目白押し。果たして、主人公の運命は…!? ヒーラーという名の看護師を目指す、少年の汗と涙とちょっとエッチな奮闘記!!!! Marco, a boy who admires healers who support warriors and heals all. In order to make his dream come true, he enrolls in a nursing school, “San Castello,” which specializes in training healers. However, when he entered the school, it was a world where females were 90% and males only 10%! What fate will fall upon our plucky protagonist is…!? A little naughty struggle featuring the sweat and tears of a shota aiming to be a Healer!!!!Not to mention, contrary to the fun school life he hoped for, this school has various courses which will put his own life at risk!