The words you provided are: 池袋 (Ikebukuro) - a district in Tokyo, Japan.
かい (kai) - translated as "recovery" or "restoration," but can vary by context.
せい (sei) - can mean "life," "birth," "energy," or "spirit," among other meanings.
どう (dou) - can mean "hall," "way," or "building," depending on context. Together, 快生堂 (かいせいどう, [快生堂](javascript:void(0))) is a proper noun referring to a specific establishment called "Kaiseidou," which appears to be a name of a massage or wellness clinic located in Ikebukuro, Tokyo. It is known for offering services like [回春マッサージ・回春エステ](javascript:void(0)), meaning "rejuvenation massage" and "rejuvenation esthetics," which target wellness and relaxation with expertise in traditional Chinese and Japanese massage styles. In summary, 快生堂 (Kaiseidou) は池袋にある回春エステの専門店で、中国人と日本人のエキスパートによる本格的な回春マッサージと前立腺マッサージを提供しています。[快生堂, 回春マッサージ・回春エステ](javascript:void(0)) はリラクゼーションと健康回復を目的としたサービスです