2 Week Summer Secret

1-4. 2 Week Summer Secret (2ウィーク・サマー・シークレット)
A shy boy becomes roommates with a Yankee during a 2 week homestay. How will their relationship change during this short time...?

5. Coffee-ga Samenai Kyori no Bokura (コーヒーが冷めない距離の僕ら)
6. Coffee Aji no Kyori no Bokura (コーヒー味の距離の僕ら)

Note: Chapter count includes an extra.