Lou Fa

Lou Fa is intelligent, shy and easily flustered, particularly around Allen Walker. Her crush becomes obvious to her friends even when she tries to behave professionally.

She is also genuinely enthusiastic about research. Allen's unusual Innocence makes his recovery scientifically fascinating, so her interest in his training is not entirely romantic.

Rikei sometimes teases or upsets her, while Shifu is generally more considerate and helps keep the trio from descending completely into arguments.

Lou Fa is a scientist rather than an Exorcist and possesses no Innocence. She studies supernatural phenomena through the Asian Branch's research program.

Her work includes observing Accommodators and the behavior of Innocence. She contributes as part of the branch's scientific staff rather than participating directly in Anti-Akuma combat.

Lou Fa meets Allen Walker when he is brought to the Asian Branch after losing his Innocence. She, Rikei and Shifu become fascinated by his recovery and repeatedly observe his training with Fou.

Fou discovers Lou Fa's feelings and occasionally uses them against her, most notably by copying her appearance when interacting with Allen.

Lou Fa remains part of the Asian Branch's younger scientific staff as later events return attention to the facility and its research.

Allen Walker is the object of Lou Fa's crush. She becomes extremely nervous around him but also takes a professional interest in his unusual Innocence.

Rikei is Lou Fa's friend and fellow apprentice scientist. His teasing frequently embarrasses or irritates her.

Shifu is the calmer third member of their group and often responds more sympathetically when Lou Fa becomes upset.

Fou knows about Lou Fa's feelings for Allen and embarrasses her by using Lou Fa's appearance while shapeshifting.