There is no Greek life at ORU. However, every male wing in the residence halls on campus has a sister wing, and vice versa. Each wing has a designated person to fill the role of social chair, and this person plans wing events and the annual brother/sister wing banquet.
Occasionally, wings and their sibling wings will have "wing night" where they find an event to attend or something to do together, which helps to promote wing unity and helps new students develop relationships. One taboo at ORU is dating someone on your brother or sister wing; this is known as "wing-cest" and is frowned upon.