Board Thread:Game Updates/@comment-3502824-20170108030619/@comment-26574811-20170202011306

冬イベント2017：期間限定海域【偵察戦力緊急展開！「光」作戦】で、【乙】作戦、または【甲】作戦に挑戦される提督の皆さんへ. 同作戦の後半では、複数の艦上偵察機「彩雲」が必要です. 作戦に投入する艦隊戦力の装備の他に、二つ以上の「彩雲」の準備をお願いできますと幸いです.

The Winter Event: "Emergency Deployment of Recon Forces! Operation HIKARI"''' requires 2 or more Saiuns. For those of you who wants to challenge Hard or Normal, please prepare 2 or more Saiuns.'''

So it really is OP Hikari (Prelude of OP Arashi, submarine-based transport mission of recon planes to be used on OP Arashi.)