1-gatsu ni wa Christmas

The protagonist, a calm and patient man, meets a childish, spoiled woman with a bad temper who creates a bad first impression on each other. Later he discovers that this lonely tsundere girl lives in a big house alone and neglects herself and the protagonist forms bonds with her wanting to help and take care of her. Both are very similar, for me, Toradora could be inspired by 1-gatsu, or this is a very strong pattern of tsunderes  

Both are about maturing relationships from high-school, to college, and beyond. Both feature a woman that the characters are enamored by due to her appearance and attitude, with her attitude being a major reason for why mishaps occur. Both have an ending of 'and life goes on, and things haven't changed.'