Which part should I read?

I was going to buy the novel into the rose garden, but from the kloff regression section, where aeroc doesn't remember and only kloff remembers. My budget is currently limited and I decided this is the section I wanted to read. In google playbook here are the options:
1. 인투 더 로즈 가든 (Into the Rose Garden). 1
2. 인투 더 로즈 가든 (Into the Rose Garden). 2
3. 인투 더 로즈 가든 (Into the Rose Garden). 3
4. 인투 더 로즈 가든 IF 외전
5. 인투 더 로즈 가든 외전. 1
6. 인투 더 로즈 가든 외전. 2

Please help me