Rinnosuke Morichika

Rinnosuke has a calm and analytical demeanor, and has a tendency to keep to himself. He rarely argues or voices negative opinions of others, preferring to avoid fights. Though he's rather curious, he prefers not to show it and tends to feign ignorance. He claims to prefer to keep his nose out of things, but tends to listen to the conversation of others. He pretends to ignore happenings around his shop but will attempt to goad others into telling him whatever is happening.

Rinnosuke has a know-it-all attitude, he is always excited to use his ability to explain things to others, even if he can't actually confirm its correctness, to the point of rambling exhaustive explanations to both himself and others. He tends to overthink his appraisal of items, to the point of it becoming wild guesses and over-the-top conclusions of the abilities of mundane items. This attitude means that, once he starts explaining things, he won't stop going into many semi-related stories until told to stop. That said, he does genuinely enjoy explaining things to others if asked.

Although he won't admit it, like Marisa Kirisame, he has a bit of a hoarding habit with his shop's collection of items. Though he would claim that these items are products to be sold, not many customers buy them. He does not mind destroying or parting with some of the more dangerous or mysterious items he has, however.

At Korunido The store is Rinnosuke's home. Although it's a somewhat well-known establishment for the residents of Gensokyo, Rinnosuke rarely (if ever) actually sells anything, despite keeping an exhaustive inventory; he mostly trades and/or puts up with "creative borrowing" from Reimu Hakurei and Marisa Kirisame. The store doesn't get very many customers aside from the usual noisy ones. Mold often grows in the store, as well, which may contribute to this.

On occasion, the store is used for completely non-business ventures, such as cooking and combat. The store has also taken quite a bit of damage over time, thanks to conflicts that involve the store's occupants.

The inventory of Kourindou is (presumably) its main draw, as it mostly includes items from the outside world. Teacups, feather pillows, computing magazines, kerosene/paraffin heaters, and even an iPod have made their way there over time.