Tired, you say...... I've never thought that way, not even once.

While on the sea, Yuudachi-neesan is really strong and beautiful. She's someone I look up to.......

For someone such as Nee-san to be relying on me makes me very happy.

Besides, Yuudachi-neesan leaves that to me even though she could do all those things herself on land.

That's why taking care of Nee-san makes me think that "Ahh, she is letting me to be by her side, isn't she?"