Gravitation

[Agnes]

A manga about an lovable singer; Shuichi Shindou, and an angsty [novelist]; [Yuki Eiri].
Shuichi struggles through the sudden popularity of his band, and his rocky relationship with Yuki Eiri. As the author struggles with his new found love for the vocalist and his dark past.
In the end they both rely on the [gravitation] of love to pull them together.

[Greta]

The act of [loving someone] for who they are and as a person, rather than going by gender or age. Not to be confused with the act of being gay, a lesbian, bisexual, or a pedophile. For example, a male person who is in gravitation would be in love with another particular male, but would not necessarily be attracted to males generally. This act is sometimes defined as a straight person in love with another person who just happens to be the same gender or people who are attracted to other people with no [restrictions] on image, age, gender, or [external] features, and instead personality.

[Gregory]

Movement, or a tendency to move, toward a center of gravity, as in the falling of bodies to the earth.