Accompanied by Sam-015, Team Dao was aboard Kano Station during the Battle of Earth. The SPARTANs defended the station from boarding Covenant infantry. While treating a wounded marine, Seung-ah was shot thrice in the right side of her back by a Covenant carbine. Although she did not flinch from her wounds due to the effects of the 009762-OO drug, Henry ordered Jim to escort her to the ship's cryo facilities, knowing that she had little time. When Kano Station took extensive damage, her cryo chamber was ejected along with others and landed on Voi.
During the same time as the Raid on Kilimanjaro, Seung-ah-G218's cryo chamber was recovered by UNSC forces. Her right lung was replaced with a newly flash-cloned one. Because of her condition, Seung-ah could not participate in the Battle of Installation 00.