Lilith Asami/Relationships

Royal Biblia Academy
Arata Kasuga Initially discovering Arata while investigating a Breakdown Phenomenon site, Lilith became one of his earlier supporters among the Trinity Seven, bringing him along to her school, the Royal Biblia Academy. As a teacher, she is often the voice of reason, however, due to her innocent nature, she is also easily flustered and embarrassed by his perverted teasing and antics to his amusement. Nonetheless, the two care deeply for one another, each sing concern for the other's safety over their own during perilous situations. Notably, Lilith was originally described as an "ice queen" prior to Arata's arrival, but has since become more expressive due to his influence. Also, at the end up chapter 23.

Trinity Seven
 Arin Kannazuki - As members of Trinity Seven, Arin and Lilith are good friends, normally getting along with each other. However, Lilith is often at times astonished by Arin's lack of common sense, usually having to correct and chide Arin for her behavior and actions. Despite this, Arin does not mind Lilith's strictness, although she does sometimes find it a bit troublesome. During battles, they are able to work together effectively as a team, trusting and caring for one another deeply. In spite of them both being close to Arata, this has not stopped them from remaining friendly with each other. Rarely, do they get jealous of each other and they continue to support one another.

 Mira Yamana - Mira and Lilith are two of the more serious characters amongst their peers, often having to be the voice of reason in many situations. Normally, they get along well with each other, holding respect for one another's abilities and accomplishments. Before Mira joined Grimoire Security, she was mostly shy and distant from others. As a teacher, Lilith would watch over her and try to help despite Mira's resistance. Now, although Mira's position as head of Grimoire security occasionally puts them on opposite sides, rarely do they let this cause them to hold a grudge against each other or hinder their friendship. During skirmishes, the two are able to fight and support each other, caring for one another's safety when the other is hurt. Furthermore, though they both may have feelings for Arata, they still remain good friends.

 Levi Kazama - Lilith seems to be excellent friends with Levi. Like Arata, Levi tends to do many perverted things, such as touching and groping Lilith's breasts from time to time. It is shown just like the rest of the Trinity Seven they have romantic feelings for Arata.

 Akio Fudo - It's shown that Lilith and Akio get along with one another, even to the point of going to Akio's job to get food with Arata while on their date, implying a professional relationship of sorts.

Family
 Abyss Trinity - Abyss Trinity is Lilith's biological father who is originating from an alternate world. Upon destroying his own world, Abyss used Lilith as an experiment to see if he could transport a magical element from his world to another. While successful, Lilith would lose her memories of her father and true origins, while Abyss would eventually be summoned by the spriggins in Sky Library. They would not meet again until Lilith and her friends were sent on a mission to Sky Library, where he would abduct her and reveal her true nature. Despite being family, Lilith continues to view him as an enemy, resisting and escaping from him temporarily. While on the other hand, Abyss simply views her as a tool to retrieve his lost power from their original world. Eventually, Arata would save her and together she would help defeat him. This has changed, however. Since being defeated with the aid of Akio's mother's magic, Abyss Trinity's feelings towards his daughter have changed to a more fatherly direction, which embarrasses Lilith, and now they are both in good terms as well as training her, and helping her with her studies.

Arles Azazel - Arles Azazel is Lilith mother, not much is known about her but she fell in love with Abyss Trinity during their school days. Abyss Trinity told Lilith that she is a professional and expert in her studies. When she was pregnant with Lilith she loved her child. It is later revealed Arles acts pretty childish towards Lilith when they first met, much to Lilith chagrin. Even forcing Lilith to call her "mama". Overtime Lilith does so. Arles would then pass her knowledge of Layer Alchemy to Lilith.

Grimoire
Hermes Apocrypha (Lilim) - As the master, Lilith normally utilizes Hermes Apocrypha to invoke Outer Alchemich, normally transforming the grimoire into her desired weapon. However, after Lilim becomes sentient, the teacher would eventually accept the child as her daughter despite being initially shocked by the sudden event, forming a close bond regardless of the relatively short duration of their relationship. Unfortunately, Lilim would willingly allow herself to return to her original state in order to protect her parents which sadden both her and Arata.