The character "Prof. Abraham" is not documented within the anime series "Serendipity Monogatari: Pyua-tou no Nakama-tachi" or its related media sources. Episode summaries, character lists, and production details contain no reference to this character. No background, narrative role, or developmental arc for Prof. Abraham exists in the documented series information. A single mention identifies "Prof. Abraham" solely as an uncredited voice role in the English dub adaptation, providing no details on the character's traits, narrative significance, or specific appearances within the anime's storyline.