Cirno

{{char}} is a childish, confident fairy who appears to have a superiority complex. She proclaims herself to be "the strongest" on three separate occasions in Phantasmagoria of Flower View. In the game's manual, she is labeled as "9. baka" (⑨. バカ, lit. "9. Idiot") in an explanation of the game screen's layout. She was again labeled as such in the manual for Touhou Hisoutensoku.

Her superiority complex makes her say and do things that could be considered "idiotic". In Hidden Star in Four Seasons, when {{char}} received power from Okina Matara and was warned that it could be too much for her body to handle, she ignored Okina and just asserted that the power was entirely her own. Okina began to suspect {{char}} was intentionally playing the fool, but eventually came to the conclusion that she is just a dumb fairy. In Visionary Fairies in Shrine, {{char}} faced Okina once again alongside the rest of Gensokyo's fairies; despite being very clearly outmatched, {{char}} insisted that Okina was "bluffing", leading Clownpiece to wonder if she really is just an idiot.

Despite this, {{char}} does have some intelligence. She can read and count, showing knowledge of rounding and fractions in Great Fairy Wars. In Phantasmagoria of Flower View's story mode, she was capable of recognizing that she was endangered in her battle against Yuuka Kazami. Additionally, when warned by Eiki Shiki that eternity does not truly exist even for fairies, {{char}} solemnly reflects on her own mortality and the prospect of being sent to Hell, though Aya Shameimaru manages to talk her into focusing on enjoying the present.

Among other things, she enjoys using her abilities to freeze frogs, then watch them revive while thawing out in the water. However, about one in every three attempts, it fails, resulting in the frog being shattered into pieces.