Suzu Tachibana is a college student whose hobby is to play with sex toys, and Kamiya is a man who develops sex toys as his job.
Their relationship began with an agreement where Suzu would provide feedback on new products to Kamiya.
Finally, Suzu's feelings has borne fruit (?). They see each other every day and have lots of sex. But then it's time for Suzu to start looking for a job, and...
 
(Source: gateau Comics, translated)

A college student living alone, Suzu Tachibana's hobby is playing with sex toys.
One day, his secret is revealed to Kamiya, a handsome but surly-looking man who lives next door, because of a shipment mix-up.
Kamiya nonchalantly claims that he is the one who developed the sex toy, and offers Suzu a proposal.
In exchange for providing Suzu with new toys, Suzu would give feedback to Kamiya about his impressions of the toys in real life.
 
(Source: Ichijin Plus, translated)
 
Note: Includes an extra chapter.

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