Happy Jikan 2013 Best Album ~The Reborn HaJi!~ (ハッピーじかん2013年ベストアルバムには、リボーンハジを〜！〜) is Happy Jikan's 2013 best album,and overall 3rd Best Album.It is set for release December 18,2013 in Regular and Limited Edition.
- Subarashii Ongaku O Subarashii Uta (Remake)
- Ài (Remake) (Hoi Daiyu solo)
- Utsukushii (Remake)
- HEART (Remake)
- SHOOTING STAR ~Girl's Dream~ (Remake)
- Mai•Hato•Bitsu•Fo•Yu~ (Remake)
- Jobuguddo! (Remake)
- GIVE LOVE A CHANCE (Remake)
- Happytaimu!Iwatte Kudasai! (Remake)
- Atarashii Mono to Furui Mono (Sixth Generation)
- Tantei Shojo (Seventh Generation)
- With or Without Watashi no Koibito (Eigth Generation)
- Kenkyu Project! (Wang Dao Ming)
- 100% no Happy Jikan! (100% Happy Jikan!)
- Zhongguó ǒuxiàng de Shenghuó (The life of a Chinese Idol)
- Gǎnxiè wǒ de qiúmí
Limited Edition DVD
- Happy Jikan Monolouges
- Best Happy Jikan Lines of 2012-2013
- Subarashii Ongaku O Subarashii Uta (REMAKE) (MV)
- 100% no Happy Jikan! (MV)
- Ài (Hoi Daiyu MV)
- Kenkyu Project! (Wang Dao Ming MV)
- Making of the Album
- Happy Jikan GG and Current Happy Jikan Get together
- Recording Session
- Sixth Generation: Hoi Daiyu,Wang Dao Ming,Wu Jiao,Aoi Xiao,Zheng May Ai,Sun Fang,Zheng Mei
- Seventh Generation: Zeng Yun ,Joe Song ,Hsaoi Zhe ,Bui Shun
- Eigth Generation: Peng Shan,Tang Juan,Lin Ju,Lee Mia
- Subarashii Ongaku O Subarashii Uta (REMAKE): 
- Utsukushii (REMAKE): 
- SHOOTING STAR ~Girl's Dream~: 
- HEART (REMAKE): 
Limited Edition Content
On the Limited Edition CD,it featured several different content. September 22nd,Oricon revealed the content of the CD:
Happy Jikan Monolouges: This features interviews from the current members,and how they feel about the group,and their goals as a group.
Best Lines of Happy Jikan 2012-2013: This features a top 10 list of the most funny Happy Jikan catchphrases or the most well recieved Happy Jikan solo lines.
Making of the Album: This features a video of the photoshoot for the album,and makings of the four MVs featured in this album.
Happy Jikan GG and Current Happy Jikan "Get Together": This features a video of former members of Happy Jikan under Happy Jikan GG and the current members of Happy Jikan having a "get together",where they will talk about things that went on while they were in Happy Jikan,why the Happy Jikan GG members graduated,and get advice from their senpais on how to make the group "#1".
Recording Sessions: This features a video of the members recording the songs features on the album.
- This is Happy Jikan's 3rd best album.
- Tracks 1,2,3,5,and 7 recieved new lyrics,while Tracks 4,8,9,10,12 recieved new arrangements.