Manaka Hiba is a supporting character in the anime Amagami SS and its sequel Amagami SS Plus. She serves as the vice president of the tea club at her school, where she is a senior to Rihoko Sakurai, alongside her fellow senior Ruriko Yuzuki. Manaka is an eighteen-year-old female student with messy shoulder-length black hair and dark eyes. She is described as a quiet girl who speaks in a soft, straightforward manner, though she has a tendency to phrase things cryptically. Her reserved and shy demeanor contrasts with her occasional directness, making her an understated presence among the tea club members.

Manaka’s motivations are centered on her enjoyment of the tea club, where she, Ruriko, and Rihoko regularly gather after school to prepare and drink tea. She is not a main romantic interest in the series; instead, her role is to support the storyline involving Rihoko and to provide a calm, stabilizing influence within the club. Her key relationships are with Ruriko Yuzuki, her close friend and fellow senior, and with Rihoko Sakurai, whom she mentors in the tea ceremony. The interaction between the three girls forms a warm, everyday dynamic.

In terms of development, Manaka remains a consistent, gentle figure throughout the series. She does not undergo a major personal arc of her own but is shown to be reliable and perceptive in her interactions. Her most notable appearance in Amagami SS Plus occurs in an episode where she visits a hot spring resort with Ruriko, highlighting her awkward yet endearing nature in more casual settings. No special abilities or skills are emphasized beyond her knowledge and practice of tea ceremony, which she participates in with quiet competence.