Kotarou Tennouji wakes from a dream of past memories and climbs to the peak a flower-covered hill where a lone girl awaits. There he dies, only to awaken again the next night to repeat the journey.
This is two shows in one. The first part is less a continuation of the first season and more the framework in which the first season took place (almost nothing that occurred there matters here, but you have to watch that first if you want to know who the characters are). The second part is a complete reset that begins in the 4th episode; it has little comedy and can be watched without having seen anything else.
More Information:
aniDB
Crunchyroll
Fansub.co
Wikipedia
