This is the first story of the deep love series, i highly recommend you start with this as to not confuse the order the order of the manga.

This is an unforgettable manga which shows the heart -touching , TRAGIC life of the protagonist. Brave , determined characters are found in this manga who inspire you with their strong wills , decisions and actions.

However this manga describes a deeply tragic life. And sad incidents around the protagonist. All the deep love mangas contain different and painful situations and happenings
I promise you , If you cry easily ( Which I do :') you'll be drenched in TEARS throughout the entire deep love manga.