I don't incline to discard dreamshell or retrodream..
Excepting for First kiss story2, I can play all of japanese game which I want to play in dreamshell or retrodream.
In fact, When I run First kiss story2 in dreamshell or retrodream with preset setting of direct,0x8cfc0000 memory, dma on, katana os, sync true, cdda false, loader 5 in retrodream or "iso loader 0.6.3_noWINCE_noCDDA_gcc7.1" It successfully display logo of MPEGSofdec and ADX, But It completely freezed when Broccoli logo start to display..
I think it is worth to test in dreamshell if I have cdi version of First kiss story2.
I know that First kiss story2 already have been ported to PlayStation2,But I want to play it in dreamcast rather than. PS2.