Representing Japan, kaiousin is active in the Age of Empires II scene. To date, kaiousin has played 10 matches in Age of Empires II. kaiousin primarily plays on the unranked ladder.

kaiousin has never ventured into ranked gameplay in Age of Empires II. kaiousin has a clear affinity for Mongols, choosing it in 30.0% of their games. Playing the flank role, kaiousin achieves a 50.0% win rate over 4 matches.