Because I Promised

Dedicated to: (fluffy, depressing EreRi oneshot suggested by:) @Ereri_Shipper

Corporal Levi Ackerman and Eren Jaegar—Are in love. Confessions will be made, and they will happily carry on with their secret relationship.

But a tragic event, in which a special promise makes the scene turn dramatically, Levi will have no other choice than follow his lover's desire.