Journey to the Shore Episode 1

Mizukis husband Yusuke went missing for 3 years. He suddenly comes back home one day and asks Mizuki to go on a trip with him. Their trip consists of visiting the people that helped Yusuke on his previous travel. While traveling together Misuki sees touches and feels what Yusuke did for those 3 years. Why did Yusuke suddenly come back home What did he try ...