Samu wa Fuyui! is the sixth single release from Houkago Princess released on November 27th, 2013. The single came in four editions and is the groups first official double A-side. The songs include the groups popular summer song from their lives, and their annual Christmas song as well as new tracks and a re-recorded version of the group song Daisuki. AuAu→Kyururun is a solo song performed by Miyashita Mayuka, whilst Itoshikute BALLOON is performed by Generation 4 of Houkago Princess.

Even though Shiraishi Rika had suspended her activities with Houkago Princess during the release of Samu wa Fuyui!, she is present on the covers and also performs in the music video for Atsu wa Natsui.

Videos for Atsu wa Natsui!, Uchuu Ichi no Christmas and Watashi no migite nata no Hidarite ~Gyuttershitai~ have been uploaded to the groups official youtube channel.

Type A Track List:

1. Atsu wa Natsui! (Single version)

2. Uchuu Ichi no Christmas (2013-2014 ver.)

3. Watashi no migite anata no Hidarite ~Gyutteshitai~

4. Atsu wa Natsui! (Instrumental)

5. Uchuu Ichi no Christmas (2013-2014 ver.) (Instrumental)

6. Watashi no migite anata no Hidarite ~Gyutteshitai~ (Instrumental)

Type C Track List:

1. Atsu wa Natsui! (Single version)

2. Uchuu Ichi no Christmas (2013-2014 ver.)

3. AuAu→Kyururun

4. Atsu wa Natsui! (Instrumental)

5. Uchuu Ichi no Christmas (2013-2014 ver.) (Instrumental)

6. AuAu→Kyururun (Instrumental)

Type B Track List:

1. Atsu wa Natsui! (Single version)

2. Uchuu Ichi no Christmas (2013-2014 ver.)

3. Daisuki (2013 winter ver.)

4. Atsu wa Natsui! (Instrumental)

5. Uchuu Ichi no Christmas (2013-2014 ver.) (Instrumental)

6. Daisuki (2013 winter ver.) (Instrumental)

Type D Track List:

1. Atsu wa Natsui (Single version)

2. Uchuu Ichi no Christmas (2013-2014 ver.)

3. Itoshikute BALLOON

4. Atsu wa Natsui (Instrumental)

5. Uchuu Ichi no Christmas (2013-2014 ver.) (Instrumental)

6. Itoshikute BALLOON (Instrumental)