It’s quite baffling how close BookLive and BookWalker look to one another, even though they seem to be backed by entirely different companies. Are those Tsutaya points it rewards for purchases??
Thanks also for posting this - I signed up and they gave me a 50% off coupon I used to finally buy the omnibus edition of 日本人の知らない日本語, and it seems like they’re willing to sell me なぜ?どうして?科学のお話 2年生, which on BookWalker is limited to domestic sales only. Yay!