brotherly affection

I deepen it.

私は深めます

I deepen the affection between siblings.

私は兄弟間の友愛を深めます

I deepen the affection between siblings at my parents' house.

私は両親の家で兄弟間の友愛を深めます

I deepen the affection between siblings at my parents' house every lunar new year.

私は旧正月のたびに両親の家で兄弟間の友愛を深めます

I deepen the affection between siblings at my parents' house with my older sister every lunar new year.

私は姉と旧正月のたびに両親の家で兄弟間の友愛を深めます