“Hehehe~ Maru came out with Mahi unnie~”
Happy times with Mahi and Maru, captured in a pink cover illustration ♥ Every Tuesday, the story of the cheerful rat 'Maru', who is responsible for the cuteness of Naver Webtoon, is published in 4 volumes of a single-volume comic book!

“Does the assistant know what Juice does?”
'Sniff sniff'... Detective Maru sniffs out the scent of a case and follows the unfamiliar looking Juice, and Im Juice's true identity is revealed... 'Aha, Juice wasn't unemployed!?'

Volume 4 of "Maru the Rat" features webtoon episodes 40-52 and the special bonus comic "Rainbow Villa Story"! Volume 4 tells the story of Maru, who excitedly prepares a gift after being invited to Seoyul's birthday party, as well as various episodes with the new neighbors he meets for the first time at Rainbow Villa.

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“If you find a four-leaf clover, your wish will come true!”
Paper cranes, shooting stars, airplanes… and Maru’s heart is far stronger than all of these.
What wish did Maru make for his neighbor dog, Sarangi?