Momoka Oshikiri appears in the third episode of the OAV "Let's Arbeit!" as a home tutor. During a tutoring session with a male student, she falls asleep. Upon waking, she notices the student has become sexually aroused while observing her. Recognizing his arousal, she removes her clothing and initiates sexual activity with him, transforming the lesson into an intimate encounter.

She stands 160 cm tall with body measurements of 98 cm (bust), 60 cm (waist), and 88 cm (hips). Momoka possesses brown hair and striking red eyes. Her blood type is B. Her birthday is January 23, signifying her Aquarius zodiac sign.