さすがに2末の海はまだ寒いんじゃないか七咲！？
安心しろ！！今俺が温めてやる！！！！
誕生日おめでとう！！！！！！

As you'd expect, the ocean is still cold at the end of February, Nanasaki!
Don't worry though!! I'll warm you up!!!!
Happy Birthday!!!!!!