Deep Jennie

Credits to Discord user Scrub_Virus for the initial write-up!

Overview
Not much is given about Jennie’s personality aside from a few lines of dialogue where she exhibits a joyous and carefree demeanor. Her eyes and mouth have been described as especially striking, and she has the physical deformity of backwards hips, impairing her locomotive abilities. Additionally, she is proficient in Javascript and has even produced tier lists in the programming language.

Relationship
The chronology of Deep Leffen tweets are an ongoing issue in the Deep Leffen Lore community, meaning Jennie’s current relationship to Deep Leffen is unknown. It is confirmed that Deep Leffen and Jennie have dated at one point, and have even broken up. Whether they are currently exes or have since rekindled has yet to be confirmed. Deep Leffen is notably unaffectionate towards Jennie, which is most likely explained by Deep Leffen’s fear of being in long term relationships with someone he doesn’t really love.

Deep Leffen’s Wife
Deep Leffen’s wife is mentioned by M2K. The exact identity of Deep Leffen’s wife is unknown as she isn’t explicitly stated by name. Given that Jennie is so far the only confirmed relationship for Deep Leffen, Jennie is considered a likely candidate for Deep Leffen’s Wife. It is entirely possible that Deep Leffen’s Wife is a separate person from Jennie, especially considering the aforementioned breakup.

PK Fire Incident and the Buffered Fully Charged Popoff
Jennie fears Deep Leffen after the “PK Fire Incident”. It is widely theorized the “PK Fire Incident” refers to Deep Leffen’s popoff tech involving his Crow King Invocation. The lack of mention to Jennie’s death is often cited as proof that Deep Leffen does not love Jennie. This is further corroborated by the fact that Deep Leffen shows little to no affection towards Jennie and has stated fear of being in long term relationships with someone he doesn’t actually love. This has also been interpreted as intentional neglect on the part of Deep Leffen; as to avoid Jennie’s death by popoff. Furthermore, it has been theorized that Deep Leffen's imprisonment is related to the “PK Fire Incident”, explaining the “loving too much” line.

Smash Bros Prodigy
Jennie is notorious for her defensive and patient play style, much to the dismay of Deep Leffen. It is implied that Jennie is actually well above average at the game, and at one point was complemented by Deep Leffen himself. MKLeo and Jennie employ a similar strategy of memorizing their character’s names by heart.

Additionally, Jennie is confirmed to have over 3x the learning rate of Deep Leffen.