Innocent ni Kuchizuke

Former host Ren Suwa runs a host club for men where clients can even kiss the cast members. One day, innocent university student Asahi Narumi shows up for a job interview, and Suwa falls in love at first sight! Still not aware of his own feelings, he decides to hire him, but Asahi's pure airheadedness and adorably honest nature challenge Suwa's self-control, and his heart is stirred by desire. Unable to resist Asahi's clueless cuteness, Suwa kisses him. But as it turns out, Asahi has never even kissed someone before...!

(Source: Takeshobo, translated)