In/Spectre

Kotoko Iwanaga calls herself the "Goddess of Wisdom" and has turned that title into a job, mediating disputes between humans and the supernatural in exchange for small favors. Confident and clever, she uses logic, bargaining and a few tricks to keep spirits, yokai and other oddities from causing trouble. Her life takes a different shape when Kuro Sakuragawa, a calm young man feared by the spirit world for reasons no one fully understands, enters the picture. Their relationship mixes flirtation and tension while they tackle episodic mysteries that blend romantic moments with eerie, puzzle-like cases, keeping the tone light even when danger creeps in.

The anime adaptation premiered in 2020, created by Noboru Takagi, Kyou Shirodaira and Chashiba Katase. Akari Kito voices Kotoko and Mamoru Miyano plays Kuro, anchoring the series with strong lead performances.

The show hasn’t picked up major industry awards, but it has gotten steady attention from anime fans and niche outlets. While it wasn’t a headline during awards season, voice acting and the clever script have been singled out in fan polls and community write-ups.

In fandom circles the series stands out for pairing a romance-forward relationship with supernatural mysteries, inspiring fan art, cosplay and lively forum threads. Its blend of humor, oddball creatures and sly romantic beats made it a frequent talking point on social feeds and among genre-focused streamers.

Critics and viewers rate it solidly, with a 7.8/10 average from audience votes. People often praise the chemistry between Kotoko and Kuro, the witty dialogue and the way the show balances mystery, comedy and light romance. Recurring themes include the limits of knowledge, the nature of belief and how human emotions can complicate even logical problem solving.