HELP ! ACT 3 wants to kill me !

so.. when i try to make Mika Sing : "DA" it's end sounds like :"KU". i've seen that, but the sample "DA" is writen DA and it's sounds like a DA. Same for the "KU".Also, HE SOUNDS LIKE A PERVY OLD MAN T^T soo...
If someone as nothing to do, could he/she help me to lower MikaHeru ACT2 to make the ACT3 ?

delete the FRQs

i Did that a couple of times and even, he sounds like that !